Back in August 2025, reports suggested the Treasury was considering a radical rethink of how the UK taxes property, including a national property tax that could replace Stamp Duty Land Tax on owner-occupied homes, and potentially a local property tax to replace council tax further down the line. That didn’t happen. Here’s what the Autumn Budget 2025 actually confirmed.
What actually changed
Stamp duty: unchanged
Despite months of speculation, there were no changes to Stamp Duty Land Tax in the Autumn Budget 2025. The existing regime remains in place for owner-occupied purchases.
A new High Value Council Tax Surcharge
- A surcharge on residential properties worth £2 million or more, introduced in England from 1 April 2028
- Charges start at £2,500 a year, rising to £7,500 a year for properties valued above £5 million
- Levied on property owners, not occupiers
- Expected to affect fewer than 1% of properties, and forecast to raise around £400 million in 2029–30
New property income tax bands
From April 2027, rental income will be taxed through new bands: 22% basic rate, 42% higher rate and 47% additional rate — an increase on current rates for landlords with rental income.
What it means for estate agents
The scenarios we covered back in August, a seller-paid levy on £500k+ homes, or an annual charge scaling with property value, didn’t materialise. That matters: those proposals risked stalling an already-slow market by discouraging higher-value homeowners from selling. The surcharge that was introduced only touches the very top of the market, so the wider chain of transactions agents rely on day-to-day shouldn’t see that same disruption. For letting agents, the more immediate practical point is the new property income tax bands landing in April 2027. It’s worth flagging to landlord clients now, particularly those with larger portfolios, so they can factor it into their planning well ahead of the change.
Quickly adapt to market changes with Alto
At Alto, we power more than half of all UK housing transactions each year, so we see first-hand how policy changes ripple through the market. With end-to-end sales and lettings progression tools, Alto helps you:
- Track chains and pipelines in real time – so you can spot risks early and keep transactions moving.
- Automate key workflows – reducing admin when teams are stretched by market changes.
- Provide clear, timely updates to clients – building trust and keeping deals on track, even in changing conditions.
- Stay compliant and informed – with updates and tools that evolve alongside regulatory and tax changes.
Property tax reform is still a live conversation. This round was narrower than the rumours suggested, but further changes to how the UK taxes property are far from off the table. We’ll keep this page updated as the picture develops.
